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Wholesale Dual Flange Embedded Graphite Bronze Sleeve Bearing, High Load Maintenance Free Brass Bushing GB61 NAAMS

Dual Flange Embedded Graphite Bronze Sleeve Bearing, High Load Maintenance Free Brass Bushing GB61 NAAMS

Product Description:

Double flanged graphite plugged bronze bushing is manufactured from high-strength bronze alloy, embedded with solid graphite as dry lubricant. Dual flange structure enables precise axial positioning on both ends during installation. It can operate under low-speed, heavy-load conditions without continuous oil supply. Widely used for plastic molds, automation equipment, textile machinery, construction machinery and hydraulic components.

Dual Flange Graphite Embedded High Load

Dual Flange Embedded Graphite Bronze Sleeve Bearing, High Load Maintenance Free Brass Bushing

Customizable Maintenance Free High Load Capacity
Product Overview

This dual flange bronze sleeve bearing features graphite plugs embedded in both the cylindrical bore and the two integral flanges. Designed for applications requiring high load capacity and bidirectional axial retention, the bearing provides maintenance-free operation in demanding environments. The dual flange configuration eliminates the need for separate thrust washers or retaining rings, reducing assembly complexity and component count. Graphite plugs on both flanges ensure lubrication for axial thrust loads in both directions. The bronze substrate offers static load capacity up to 220 N/mm². Custom dimensions, graphite patterns, and flange configurations available to meet specific application requirements.

Dual Flange Embedded Graphite Bronze Sleeve Bearing
Dual Flange Retention Integral flanges on both ends provide bidirectional axial retention. Eliminates separate thrust washers and retaining rings.
Embedded Graphite Lubrication Graphite plugs distributed on bore and both flange faces. Continuous lubrication for radial and bidirectional thrust loads.
High Static Load Capacity Bronze substrate supports static loads up to 220 N/mm². Suitable for heavy duty industrial applications.
Customizable Configuration Dimensions, graphite plug density, flange thickness, and bore tolerances adjustable to meet application needs.
Core Advantages
  • Dual flange design provides axial location in both directions without additional hardware
  • Graphite plugs on both flanges ensure lubrication for bidirectional thrust loads
  • Maintenance-free operation eliminates lubrication schedules in production environments
  • Brass substrate offers corrosion resistance and high load bearing capacity
  • Custom sizes and graphite patterns available for non-standard applications
Product Characteristics
  • Material: CuSn8 bronze with high purity graphite plugs
  • Flange configuration: Dual flange (both ends)
  • Graphite coverage: 20-25% on bore, 12-15% on each flange face
  • Bore tolerance: ISO H8 at 20°C reference
  • Operating temperature: -40°C to 260°C continuous
Application Scenarios
Heavy duty press tool guide systems
Large die set ejector mechanisms
Automotive stamping transfer systems
Industrial robot pivot joints
Hydraulic cylinder pivot bearings
Heavy machinery articulation points
Construction equipment linkage bearings
Custom high-load fixture applications
Customization Available Dual flange bearings can be customized to meet specific application requirements. Options include custom inner and outer diameters, flange thickness and diameter ratios, graphite plug density, and bore tolerances. Engineering consultation available for non-standard applications.
ID Range: 6-120mm
OD Range: 12-150mm
Flange: Custom ratios & thickness
Frequently Asked Questions
What is the advantage of dual flange over single flange
Dual flange provides axial retention in both directions. This eliminates the need for separate retaining rings or shoulder screws on both sides of the bearing, simplifying assembly and reducing component inventory.
How are graphite plugs distributed on the flanges
Graphite plugs are arranged in circular patterns on both flange faces. Each flange typically contains 8-16 plugs depending on diameter, ensuring uniform lubrication for bidirectional thrust loads.
Can the dual flange design accommodate misalignment
Standard dual flange bearings allow up to 0.5 degrees angular misalignment. For applications requiring higher misalignment, consult engineering for clearance adjustments.
What is the recommended installation method for dual flange bearings
Press fit using a flat tool contacting one flange face. The opposite flange provides visual confirmation of full seating. Counterbore depth must match flange thickness on both sides.
How to determine when to replace a dual flange bearing
Replace when bore diameter wear exceeds 0.06mm, flange thickness wear exceeds 0.10mm, or when graphite on either flange face falls below 10% of the original surface area.

Standard No. NAAMS Code d d1 d2 L1 L2 L3 r
GB61 2540 G612540 25 32 40 40 30 4 3
GB61 3250 G613250 32 40 50 50 40 4 3
GB61 4063 G614063 40 50 63 63 50 5 3
GB61 5071 G61 5071 50 63 71 71 56 6 5
GB61 6380 G616380 63 80 90 80 63 8 6
GB61 80100 G61 8010 80 100 112 100 80 10 8
GB61 10125 G611012 100 125 140 125 106 12 10
GB61 115140 G611114 115 140 155 140 120 12 10
GB61 125160 G611216 125 160 180 160 132 12 12

Feature

1. Flange design for easy installation and safe positioning
2. Solid - lubricating, with wear - resistance and friction - reduction
3. Complies with NAAMS standard for system compatibility
 
Application

1. Automotive manufacturing
2. Heavy machinery
3. Other high - load, low - speed industrial environments

Zhejiang Shuangnuo Bearing Technology Co., Ltd.
Zhejiang Shuangnuo Bearing Technology Co., Ltd. is China Dual Flange Embedded Graphite Bronze Sleeve Bearing, High Load Maintenance Free Brass Bushing GB61 NAAMS Suppliers and Wholesale Dual Flange Embedded Graphite Bronze Sleeve Bearing, High Load Maintenance Free Brass Bushing GB61 NAAMS Company, we are a manufacturer specializing in producing various self-lubricating copper alloy products using centrifugal casting, continuous casting, metal mold casting, and other processes. Its main products include brass, aluminum bronze, tin bronze, and others produced according to national standard grades. It processes and produces various solid inlaid self-lubricating bearing products on this basis . At the same time, it uses sintering technology to produce bimetallic products and many other types of products. Since its establishment nearly 10 years ago, the company has focused on the research development, and production of various new self-lubricating bearings.

In the process of product production, our company has always insisted on independent casting production of raw materials to ensure the quality of products from the source; during the casting process, the whole process is monitored, and the finished product is tested by spectrometer three times before, in and after the furnace to confirm the material composition of the product. The national testing agency is regularly commissioned to test the material composition and mechanical properties of the product, and authoritative test reports can be provided to customers in need; the company implements integrated production from material to finished product processing and has more than 80 sets of advanced CNC machine tools, CNC lathes, machining centers, and other major equipment. The strong production capacity ensures that the material production is organized for customers for the first time, shortening the production cycle.
  • 0+
    Establishment

    Founded in 2014, Shuangnuo has 10 years of experience in the industry.

  • 0+
    Advanced Equipment

    Strong production capacity ensures that we can organize material production for customers as soon as possible and shorten the production cycle.

  • 0+
    Happy Clients

    There are more than 5,000 cooperative customers around the world.

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